mccarty



E. B. McCARTY.

PLOWSHARE.

APPLICATION FILED MAR. 3. 1911.

Patented Dec. 2, 1919.

2 SHEETS-SHEET I.

EDWIN nAYMoivnarcoanrY,

aseaaleo.

To all whom it may concerm. l g it known that l, EDWIN RA MOND liloCan'rY, a subject of the King of. Great Britain and lreland, residing at Warren street, Gilgandra, 1n the State of New South W ales, Commonwealth of Australia, have invented certain new and useful Improvements in Plowshares, of which the following is a specification.

The object of this invention is to provide a plow inwhich the point may with a minimum of trouble and delay be adjusted to compensate for wear and removed andre placed as occasion requires, and in which the pomt piece is self sharpening.

The invention consists of a plow comprising a landside having at the top an intu rned overhanging flange between which and the underlying frog is a point piece (or pieces) consisting of a metal bar (or bars) with appropriately shaped point and secured by a pin or pins passing through said flange and point piece or pieces and adapted to be inserted in any one of a longitudinal series of holes whereby adjustment may be made. Further security against lateral movement is obtained by means of a triangular share secured to the frog and bearing against the side of the point piece or pieces.

In one form the plow has an upturned lug from the frog, between which lug and the overhanging flange the point piece (or pieces) are tightly fitted; while in another form the point piece (or pieces) bears clirectly on the frog, the plow body being of somewhat different construction and better adapted for cast metal.

The invention will be further described with reference to the accompanying drawings depicting share construction according to this invention, and in which Figure 1 is a perspective view of a plow with double point piece and a forged body,

Fig. 2 being a sectional elevation on line 2. 2. of Fig. 1.

Fig. 3 a cross section on 1, and

Fig. 4L a cross section on line 4. 4. of Fig. 1, looking toward the point.

Fig. 5 is a perspective view of a plow with single point piece and a cast metal body,

Fig. 6 being a section on line 6. 6. of Fig. 5.

Fig. 7 a section on line 7. 7. of Fig. 5, and

Fig. 8 a section on line 8. 8. of Fig. 6, looking away from the point.

line 3. 3. of Fig.

. Specification of Letters Patent.

QF GILGANDRAyNEW SOUTH WALES, AUSTRALIA.

PLOWSI-IARE.

Patented Dec. '2, 1919.

. Application filed March 3, 1917. Serial No. 152,310.

It is to be understood that I do not confine myself to a forged or castbody in either con struction nor to single or double point pieces,

and that details illustrated in either form may where suitable and appropriate be appliedto the other. g

In Figs. 1 to 4-, inclusive, the plow body consists of a triangular shaped frog 10, landside 11 and inturned overhanging flange 12. The frog 10 has punched out of it an up- 1 turned lug 13 between which and the flange 12 are fitted the point pieces 14 and 15 havmg chisel edged points and adjustably secured by a pin 16 passing through any one of the series of equally spaced holes 17 in the flange and any registering one of the holes 18 in the point pieces. It will readily be seen that adjustment to a considerable extent may be made by causing any one of the holes 18 to re ister with ony one of the holes 17.

The triangular share 19 is secured to the frog 10 by the flat-headed bolt 21 and has a cutting edge 22 and oppositely turned edges 23 either one of which may bear against the side of the point pieces. The share may thus be reversed when it wears, serving as a reversible share as well as a. point securing element. It also offers a comparatively smooth surface to the passage of soil over it.

The foot of the plow (not shown) is inserted between the frog 10, land-side 11 and lug 13.

In Figs. 5 to 8 inclusive in which the same numerals are used to indicate parts corresponding to those previously described, the frog 1O adjoins the upper part ofthe land-side 11 and has a fiat surface 24 between which and the flange 12 is fitted the point piece 14 secured by a duplex pin 25 the elongated head of which fits neatly in a correspondingly shaped hole in the flange 12 and the pin parts pass through any adjacent pair of holes 18 in the point piece and through a pair of holes in the frog 10.

The share 19 with oppositely turned edges 28 and cutting edge 22 as before described is held to the frog 10 by the flat-headed bolt 21, and also engages two lugs 26 projecting from the frog, said lugs being so disposed that the plate may be reversed. The rear flange 23 bears against an abutment 27 on the frog.

The plow foot (not shown) is inserted in the socket 28 formed by the frog 10, landside 11, flange 29 on same and rib 30 on the frog.

' What I claim as my invention is 'gles to each other, and one of whichbears 1. In a plow, a landside having a laterally 7 against one side edge of the point. extending flange at its upper side and also 3. In a plow, a landside having alaterally having a frog extending from the same side extending flange at its upper side and also 1 5 as said flange, a point arranged between the having a frog extending from the same side 20 flange and frog, and a share secured on the as said flange, a point arranged and longitu frog and having one side edge bearing dinally adjustably secured between the against one side edge of the point. flange and frog, and a share secured on the 2. In aploW, a landside having a laterally frog and having one side ;edge bearing 10 extending flange at its upper side and also against one side edge of the point, I j

having a frog extending from the same side Signed at Sydney inthe State of vNew as said flange, a point arranged between the South Wales, this 24th day of January A. D. flange and frog, and a reversible substan- 1917. tially triangular share secured on the frog r V 15 and having side edges arranged atright an EDWIN RAYMOND MoGARTY. 

